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119867-21-9

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119867-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119867-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,8,6 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 119867-21:
(8*1)+(7*1)+(6*9)+(5*8)+(4*6)+(3*7)+(2*2)+(1*1)=159
159 % 10 = 9
So 119867-21-9 is a valid CAS Registry Number.

119867-21-9Relevant articles and documents

INTRAMOLECULAR METAL CATALYZED KHARASCH CYCLIZATION OF OLEFINIC α-HALO ESTERS AND ACIDS

Lee, Gary M.,Weinreb, Parvez,Weinreb, Steven M,

, p. 4671 - 4678 (2007/10/02)

Functionalized carbocyclyc compounds are produced by intramolecular Kharasch radical cyclization reactions catalyzed by various transition metal complexes.Several unsaturated mono-α-haloesters and acids can be efficiently transformed to γ-halocarboxyl and γ-lactone carbocycles via exo closure of a 5-hexenyl type radical intermediate.The cyclization methodology is useful for synthesis of both fused and bridged carbocycles.

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